Quantum synchronization of two mechanical oscillators in coupled optomechanical systems with Kerr nonlinearity.

Quantum synchronization of two mechanical oscillators in coupled optomechanical systems with Kerr nonlinearity.
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具有克尔非线性的耦合光机械系统中两个机械振荡器的量子同步

DOI:
10.1038/s41598-018-33903-z
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发表时间:
2018-10-23
期刊:
影响因子:
4.6
通讯作者:
Yi XX
Yi XX
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Qiao GJ;Gao HX;Liu HD;Yi XX

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研究了两个光机械系统中两个不同频率的机械振子在周期性调制腔失谐或驱动振幅下的量子同步现象,它们可以通过光纤或声子隧穿相互作用。腔体中填充有克尔型非线性介质。研究发现,无论采用哪种耦合方式和周期调制方式,非线性光机系统的量子同步都比线性光机系统的量子同步更有吸引力。在克尔非线性的情况下,更容易观察到大大增强的量子同步。此外,还比较和讨论了两种耦合方式和两种调制方式对量子同步的不同影响。
We investigate the quantum synchronization phenomena of two mechanical oscillators of different frequencies in two optomechanical systems under periodically modulating cavity detunings or driving amplitudes, which can interact mutually through an optical fiber or a phonon tunneling. The cavities are filled with Kerr-type nonlinear medium. It is found that, no matter which the coupling and periodically modulation we choose, both of the quantum synchronization of nonlinear optomechanical system are more appealing than the linear optomechanical system. It is easier to observe greatly enhanced quantum synchronization with Kerr nonlinearity. In addition, the different influences on the quantum synchronization between the two coupling ways and the two modulating ways are compared and discussed.
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